Abstrcat The soil organic matter and nutrient contents of Pinus tabulaeformis woods

Caragana intermedia shrubs

Stipa bungeana steppe

Thymus serphyllum steppe and non-cultivated land of Wufendigou experimental area in Huangfuchuan basin are measured and analyzed. The results showed that: (1) Vegetative restoration could increase the contents of the soil organic matter and rapidly available nutrient remarkedly

and improve the soil fertility; (2) With the increase of the soil depth

the benefit that vegetative restoration heightened the degree of soil fertility was decreased obviously

and the feature of soil organic matter gathering on the surface was most significant in Pinus tabulaeformis woods; (3) The fixation effect of total N in artificial vegetation was more obvious than that in natural vegetation

but it was converse on the fixation effect of total P. The mechanism of vegetative restoration heightening soil fertility and the restoration effect of soil fertility in different vegetation were discussed